Home / 102,982.33-142,103.14-57,656.76

Finding the Fourth Proportional to 102,982.33, 142,103.14 and 57,656.76

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Solution

The fourth proportional to 102,982.33, 142,103.14 and 57,656.76 is: 79,559.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,982.33 : 142,103.14 = 57,656.76 : x
  2. Step 2: Convert to fraction form
    102,982.33/142,103.14 = 57,656.76/x
  3. Step 3: Cross multiply
    102,982.33x = 142,103.14 × 57,656.76
  4. Step 4: Simplify right side
    102,982.33x = 8,193,206,638.23
  5. Step 5: Solve for x
    x = 8,193,206,638.23/102,982.33
  6. Step 6: Final answer
    x = 79,559.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.